jdk8-mips64-public/hotspot: src/share/vm/services/memoryService.cpp@1d7922586cf6

7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>

     1 /*

     2  * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #include "precompiled.hpp"

    26 #include "classfile/systemDictionary.hpp"

    27 #include "classfile/vmSymbols.hpp"

    28 #include "gc_implementation/shared/mutableSpace.hpp"

    29 #include "memory/collectorPolicy.hpp"

    30 #include "memory/defNewGeneration.hpp"

    31 #include "memory/genCollectedHeap.hpp"

    32 #include "memory/generation.hpp"

    33 #include "memory/generationSpec.hpp"

    34 #include "memory/heap.hpp"

    35 #include "memory/memRegion.hpp"

    36 #include "memory/permGen.hpp"

    37 #include "memory/tenuredGeneration.hpp"

    38 #include "oops/oop.inline.hpp"

    39 #include "runtime/javaCalls.hpp"

    40 #include "services/classLoadingService.hpp"

    41 #include "services/lowMemoryDetector.hpp"

    42 #include "services/management.hpp"

    43 #include "services/memoryManager.hpp"

    44 #include "services/memoryPool.hpp"

    45 #include "services/memoryService.hpp"

    46 #include "utilities/growableArray.hpp"

    47 #ifndef SERIALGC

    48 #include "gc_implementation/concurrentMarkSweep/cmsPermGen.hpp"

    49 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp"

    50 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"

    51 #include "gc_implementation/parNew/parNewGeneration.hpp"

    52 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp"

    53 #include "gc_implementation/parallelScavenge/psOldGen.hpp"

    54 #include "gc_implementation/parallelScavenge/psPermGen.hpp"

    55 #include "gc_implementation/parallelScavenge/psYoungGen.hpp"

    56 #include "services/g1MemoryPool.hpp"

    57 #include "services/psMemoryPool.hpp"

    58 #endif

    60 GrowableArray<MemoryPool*>* MemoryService::_pools_list =

    61   new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_pools_list_size, true);

    62 GrowableArray<MemoryManager*>* MemoryService::_managers_list =

    63   new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryManager*>(init_managers_list_size, true);

    65 GCMemoryManager* MemoryService::_minor_gc_manager = NULL;

    66 GCMemoryManager* MemoryService::_major_gc_manager = NULL;

    67 MemoryPool*      MemoryService::_code_heap_pool   = NULL;

    69 class GcThreadCountClosure: public ThreadClosure {

    70  private:

    71   int _count;

    72  public:

    73   GcThreadCountClosure() : _count(0) {};

    74   void do_thread(Thread* thread);

    75   int count() { return _count; }

    76 };

    78 void GcThreadCountClosure::do_thread(Thread* thread) {

    79   _count++;

    80 }

    82 void MemoryService::set_universe_heap(CollectedHeap* heap) {

    83   CollectedHeap::Name kind = heap->kind();

    84   switch (kind) {

    85     case CollectedHeap::GenCollectedHeap : {

    86       add_gen_collected_heap_info(GenCollectedHeap::heap());

    87       break;

    88     }

    89 #ifndef SERIALGC

    90     case CollectedHeap::ParallelScavengeHeap : {

    91       add_parallel_scavenge_heap_info(ParallelScavengeHeap::heap());

    92       break;

    93     }

    94     case CollectedHeap::G1CollectedHeap : {

    95       add_g1_heap_info(G1CollectedHeap::heap());

    96       break;

    97     }

    98 #endif // SERIALGC

    99     default: {

   100       guarantee(false, "Unrecognized kind of heap");

   101     }

   102   }

   104   // set the GC thread count

   105   GcThreadCountClosure gctcc;

   106   heap->gc_threads_do(&gctcc);

   107   int count = gctcc.count();

   108   if (count > 0) {

   109     _minor_gc_manager->set_num_gc_threads(count);

   110     _major_gc_manager->set_num_gc_threads(count);

   111   }

   113   // All memory pools and memory managers are initialized.

   114   //

   115   _minor_gc_manager->initialize_gc_stat_info();

   116   _major_gc_manager->initialize_gc_stat_info();

   117 }

   119 // Add memory pools for GenCollectedHeap

   120 // This function currently only supports two generations collected heap.

   121 // The collector for GenCollectedHeap will have two memory managers.

   122 void MemoryService::add_gen_collected_heap_info(GenCollectedHeap* heap) {

   123   CollectorPolicy* policy = heap->collector_policy();

   125   assert(policy->is_two_generation_policy(), "Only support two generations");

   126   guarantee(heap->n_gens() == 2, "Only support two-generation heap");

   128   TwoGenerationCollectorPolicy* two_gen_policy = policy->as_two_generation_policy();

   129   if (two_gen_policy != NULL) {

   130     GenerationSpec** specs = two_gen_policy->generations();

   131     Generation::Name kind = specs[0]->name();

   132     switch (kind) {

   133       case Generation::DefNew:

   134         _minor_gc_manager = MemoryManager::get_copy_memory_manager();

   135         break;

   136 #ifndef SERIALGC

   137       case Generation::ParNew:

   138       case Generation::ASParNew:

   139         _minor_gc_manager = MemoryManager::get_parnew_memory_manager();

   140         break;

   141 #endif // SERIALGC

   142       default:

   143         guarantee(false, "Unrecognized generation spec");

   144         break;

   145     }

   146     if (policy->is_mark_sweep_policy()) {

   147       _major_gc_manager = MemoryManager::get_msc_memory_manager();

   148 #ifndef SERIALGC

   149     } else if (policy->is_concurrent_mark_sweep_policy()) {

   150       _major_gc_manager = MemoryManager::get_cms_memory_manager();

   151 #endif // SERIALGC

   152     } else {

   153       guarantee(false, "Unknown two-gen policy");

   154     }

   155   } else {

   156     guarantee(false, "Non two-gen policy");

   157   }

   158   _managers_list->append(_minor_gc_manager);

   159   _managers_list->append(_major_gc_manager);

   161   add_generation_memory_pool(heap->get_gen(minor), _major_gc_manager, _minor_gc_manager);

   162   add_generation_memory_pool(heap->get_gen(major), _major_gc_manager);

   164   PermGen::Name name = policy->permanent_generation()->name();

   165   switch (name) {

   166     case PermGen::MarkSweepCompact: {

   167       CompactingPermGenGen* perm_gen = (CompactingPermGenGen*) heap->perm_gen();

   168       add_compact_perm_gen_memory_pool(perm_gen, _major_gc_manager);

   169       break;

   170     }

   171 #ifndef SERIALGC

   172     case PermGen::ConcurrentMarkSweep: {

   173       CMSPermGenGen* cms_gen = (CMSPermGenGen*) heap->perm_gen();

   174       add_cms_perm_gen_memory_pool(cms_gen, _major_gc_manager);

   175       break;

   176     }

   177 #endif // SERIALGC

   178     default:

   179       guarantee(false, "Unrecognized perm generation");

   180         break;

   181   }

   182 }

   184 #ifndef SERIALGC

   185 // Add memory pools for ParallelScavengeHeap

   186 // This function currently only supports two generations collected heap.

   187 // The collector for ParallelScavengeHeap will have two memory managers.

   188 void MemoryService::add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap) {

   189   // Two managers to keep statistics about _minor_gc_manager and _major_gc_manager GC.

   190   _minor_gc_manager = MemoryManager::get_psScavenge_memory_manager();

   191   _major_gc_manager = MemoryManager::get_psMarkSweep_memory_manager();

   192   _managers_list->append(_minor_gc_manager);

   193   _managers_list->append(_major_gc_manager);

   195   add_psYoung_memory_pool(heap->young_gen(), _major_gc_manager, _minor_gc_manager);

   196   add_psOld_memory_pool(heap->old_gen(), _major_gc_manager);

   197   add_psPerm_memory_pool(heap->perm_gen(), _major_gc_manager);

   198 }

   200 void MemoryService::add_g1_heap_info(G1CollectedHeap* g1h) {

   201   assert(UseG1GC, "sanity");

   203   _minor_gc_manager = MemoryManager::get_g1YoungGen_memory_manager();

   204   _major_gc_manager = MemoryManager::get_g1OldGen_memory_manager();

   205   _managers_list->append(_minor_gc_manager);

   206   _managers_list->append(_major_gc_manager);

   208   add_g1YoungGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager);

   209   add_g1OldGen_memory_pool(g1h, _major_gc_manager);

   210   add_g1PermGen_memory_pool(g1h, _major_gc_manager);

   211 }

   212 #endif // SERIALGC

   214 MemoryPool* MemoryService::add_gen(Generation* gen,

   215                                    const char* name,

   216                                    bool is_heap,

   217                                    bool support_usage_threshold) {

   219   MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);

   220   GenerationPool* pool = new GenerationPool(gen, name, type, support_usage_threshold);

   221   _pools_list->append(pool);

   222   return (MemoryPool*) pool;

   223 }

   225 MemoryPool* MemoryService::add_space(ContiguousSpace* space,

   226                                      const char* name,

   227                                      bool is_heap,

   228                                      size_t max_size,

   229                                      bool support_usage_threshold) {

   230   MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);

   231   ContiguousSpacePool* pool = new ContiguousSpacePool(space, name, type, max_size, support_usage_threshold);

   233   _pools_list->append(pool);

   234   return (MemoryPool*) pool;

   235 }

   237 MemoryPool* MemoryService::add_survivor_spaces(DefNewGeneration* gen,

   238                                                const char* name,

   239                                                bool is_heap,

   240                                                size_t max_size,

   241                                                bool support_usage_threshold) {

   242   MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);

   243   SurvivorContiguousSpacePool* pool = new SurvivorContiguousSpacePool(gen, name, type, max_size, support_usage_threshold);

   245   _pools_list->append(pool);

   246   return (MemoryPool*) pool;

   247 }

   249 #ifndef SERIALGC

   250 MemoryPool* MemoryService::add_cms_space(CompactibleFreeListSpace* space,

   251                                          const char* name,

   252                                          bool is_heap,

   253                                          size_t max_size,

   254                                          bool support_usage_threshold) {

   255   MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);

   256   CompactibleFreeListSpacePool* pool = new CompactibleFreeListSpacePool(space, name, type, max_size, support_usage_threshold);

   257   _pools_list->append(pool);

   258   return (MemoryPool*) pool;

   259 }

   260 #endif // SERIALGC

   262 // Add memory pool(s) for one generation

   263 void MemoryService::add_generation_memory_pool(Generation* gen,

   264                                                MemoryManager* major_mgr,

   265                                                MemoryManager* minor_mgr) {

   266   Generation::Name kind = gen->kind();

   267   int index = _pools_list->length();

   269   switch (kind) {

   270     case Generation::DefNew: {

   271       assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");

   272       DefNewGeneration* young_gen = (DefNewGeneration*) gen;

   273       // Add a memory pool for each space and young gen doesn't

   274       // support low memory detection as it is expected to get filled up.

   275       MemoryPool* eden = add_space(young_gen->eden(),

   276                                    "Eden Space",

   277                                    true, /* is_heap */

   278                                    young_gen->max_eden_size(),

   279                                    false /* support_usage_threshold */);

   280       MemoryPool* survivor = add_survivor_spaces(young_gen,

   281                                                  "Survivor Space",

   282                                                  true, /* is_heap */

   283                                                  young_gen->max_survivor_size(),

   284                                                  false /* support_usage_threshold */);

   285       break;

   286     }

   288 #ifndef SERIALGC

   289     case Generation::ParNew:

   290     case Generation::ASParNew:

   291     {

   292       assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");

   293       // Add a memory pool for each space and young gen doesn't

   294       // support low memory detection as it is expected to get filled up.

   295       ParNewGeneration* parnew_gen = (ParNewGeneration*) gen;

   296       MemoryPool* eden = add_space(parnew_gen->eden(),

   297                                    "Par Eden Space",

   298                                    true /* is_heap */,

   299                                    parnew_gen->max_eden_size(),

   300                                    false /* support_usage_threshold */);

   301       MemoryPool* survivor = add_survivor_spaces(parnew_gen,

   302                                                  "Par Survivor Space",

   303                                                  true, /* is_heap */

   304                                                  parnew_gen->max_survivor_size(),

   305                                                  false /* support_usage_threshold */);

   307       break;

   308     }

   309 #endif // SERIALGC

   311     case Generation::MarkSweepCompact: {

   312       assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager");

   313       add_gen(gen,

   314               "Tenured Gen",

   315               true, /* is_heap */

   316               true  /* support_usage_threshold */);

   317       break;

   318     }

   320 #ifndef SERIALGC

   321     case Generation::ConcurrentMarkSweep:

   322     case Generation::ASConcurrentMarkSweep:

   323     {

   324       assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager");

   325       ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*) gen;

   326       MemoryPool* pool = add_cms_space(cms->cmsSpace(),

   327                                        "CMS Old Gen",

   328                                        true, /* is_heap */

   329                                        cms->reserved().byte_size(),

   330                                        true  /* support_usage_threshold */);

   331       break;

   332     }

   333 #endif // SERIALGC

   335     default:

   336       assert(false, "should not reach here");

   337       // no memory pool added for others

   338       break;

   339   }

   341   assert(major_mgr != NULL, "Should have at least one manager");

   342   // Link managers and the memory pools together

   343   for (int i = index; i < _pools_list->length(); i++) {

   344     MemoryPool* pool = _pools_list->at(i);

   345     major_mgr->add_pool(pool);

   346     if (minor_mgr != NULL) {

   347       minor_mgr->add_pool(pool);

   348     }

   349   }

   350 }

   352 void MemoryService::add_compact_perm_gen_memory_pool(CompactingPermGenGen* perm_gen,

   353                                                      MemoryManager* mgr) {

   354   PermanentGenerationSpec* spec = perm_gen->spec();

   355   size_t max_size = spec->max_size() - spec->read_only_size() - spec->read_write_size();

   356   MemoryPool* pool = add_space(perm_gen->unshared_space(),

   357                                "Perm Gen",

   358                                 false, /* is_heap */

   359                                 max_size,

   360                                 true   /* support_usage_threshold */);

   361   mgr->add_pool(pool);

   362   if (UseSharedSpaces) {

   363     pool = add_space(perm_gen->ro_space(),

   364                      "Perm Gen [shared-ro]",

   365                      false, /* is_heap */

   366                      spec->read_only_size(),

   367                      true   /* support_usage_threshold */);

   368     mgr->add_pool(pool);

   370     pool = add_space(perm_gen->rw_space(),

   371                      "Perm Gen [shared-rw]",

   372                      false, /* is_heap */

   373                      spec->read_write_size(),

   374                      true   /* support_usage_threshold */);

   375     mgr->add_pool(pool);

   376   }

   377 }

   379 #ifndef SERIALGC

   380 void MemoryService::add_cms_perm_gen_memory_pool(CMSPermGenGen* cms_gen,

   381                                                  MemoryManager* mgr) {

   383   MemoryPool* pool = add_cms_space(cms_gen->cmsSpace(),

   384                                    "CMS Perm Gen",

   385                                    false, /* is_heap */

   386                                    cms_gen->reserved().byte_size(),

   387                                    true   /* support_usage_threshold */);

   388   mgr->add_pool(pool);

   389 }

   391 void MemoryService::add_psYoung_memory_pool(PSYoungGen* gen, MemoryManager* major_mgr, MemoryManager* minor_mgr) {

   392   assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");

   394   // Add a memory pool for each space and young gen doesn't

   395   // support low memory detection as it is expected to get filled up.

   396   EdenMutableSpacePool* eden = new EdenMutableSpacePool(gen,

   397                                                         gen->eden_space(),

   398                                                         "PS Eden Space",

   399                                                         MemoryPool::Heap,

   400                                                         false /* support_usage_threshold */);

   402   SurvivorMutableSpacePool* survivor = new SurvivorMutableSpacePool(gen,

   403                                                                     "PS Survivor Space",

   404                                                                     MemoryPool::Heap,

   405                                                                     false /* support_usage_threshold */);

   407   major_mgr->add_pool(eden);

   408   major_mgr->add_pool(survivor);

   409   minor_mgr->add_pool(eden);

   410   minor_mgr->add_pool(survivor);

   411   _pools_list->append(eden);

   412   _pools_list->append(survivor);

   413 }

   415 void MemoryService::add_psOld_memory_pool(PSOldGen* gen, MemoryManager* mgr) {

   416   PSGenerationPool* old_gen = new PSGenerationPool(gen,

   417                                                    "PS Old Gen",

   418                                                    MemoryPool::Heap,

   419                                                    true /* support_usage_threshold */);

   420   mgr->add_pool(old_gen);

   421   _pools_list->append(old_gen);

   422 }

   424 void MemoryService::add_psPerm_memory_pool(PSPermGen* gen, MemoryManager* mgr) {

   425   PSGenerationPool* perm_gen = new PSGenerationPool(gen,

   426                                                     "PS Perm Gen",

   427                                                     MemoryPool::NonHeap,

   428                                                     true /* support_usage_threshold */);

   429   mgr->add_pool(perm_gen);

   430   _pools_list->append(perm_gen);

   431 }

   433 void MemoryService::add_g1YoungGen_memory_pool(G1CollectedHeap* g1h,

   434                                                MemoryManager* major_mgr,

   435                                                MemoryManager* minor_mgr) {

   436   assert(major_mgr != NULL && minor_mgr != NULL, "should have two managers");

   438   G1EdenPool* eden = new G1EdenPool(g1h);

   439   G1SurvivorPool* survivor = new G1SurvivorPool(g1h);

   441   major_mgr->add_pool(eden);

   442   major_mgr->add_pool(survivor);

   443   minor_mgr->add_pool(eden);

   444   minor_mgr->add_pool(survivor);

   445   _pools_list->append(eden);

   446   _pools_list->append(survivor);

   447 }

   449 void MemoryService::add_g1OldGen_memory_pool(G1CollectedHeap* g1h,

   450                                              MemoryManager* mgr) {

   451   assert(mgr != NULL, "should have one manager");

   453   G1OldGenPool* old_gen = new G1OldGenPool(g1h);

   454   mgr->add_pool(old_gen);

   455   _pools_list->append(old_gen);

   456 }

   458 void MemoryService::add_g1PermGen_memory_pool(G1CollectedHeap* g1h,

   459                                               MemoryManager* mgr) {

   460   assert(mgr != NULL, "should have one manager");

   462   CompactingPermGenGen* perm_gen = (CompactingPermGenGen*) g1h->perm_gen();

   463   PermanentGenerationSpec* spec = perm_gen->spec();

   464   size_t max_size = spec->max_size() - spec->read_only_size()

   465                                      - spec->read_write_size();

   466   MemoryPool* pool = add_space(perm_gen->unshared_space(),

   467                                "G1 Perm Gen",

   468                                false, /* is_heap */

   469                                max_size,

   470                                true   /* support_usage_threshold */);

   471   mgr->add_pool(pool);

   473   // in case we support CDS in G1

   474   if (UseSharedSpaces) {

   475     pool = add_space(perm_gen->ro_space(),

   476                      "G1 Perm Gen [shared-ro]",

   477                      false, /* is_heap */

   478                      spec->read_only_size(),

   479                      true   /* support_usage_threshold */);

   480     mgr->add_pool(pool);

   482     pool = add_space(perm_gen->rw_space(),

   483                      "G1 Perm Gen [shared-rw]",

   484                      false, /* is_heap */

   485                      spec->read_write_size(),

   486                      true   /* support_usage_threshold */);

   487     mgr->add_pool(pool);

   488   }

   489 }

   490 #endif // SERIALGC

   492 void MemoryService::add_code_heap_memory_pool(CodeHeap* heap) {

   493   _code_heap_pool = new CodeHeapPool(heap,

   494                                      "Code Cache",

   495                                      true /* support_usage_threshold */);

   496   MemoryManager* mgr = MemoryManager::get_code_cache_memory_manager();

   497   mgr->add_pool(_code_heap_pool);

   499   _pools_list->append(_code_heap_pool);

   500   _managers_list->append(mgr);

   501 }

   503 MemoryManager* MemoryService::get_memory_manager(instanceHandle mh) {

   504   for (int i = 0; i < _managers_list->length(); i++) {

   505     MemoryManager* mgr = _managers_list->at(i);

   506     if (mgr->is_manager(mh)) {

   507       return mgr;

   508     }

   509   }

   510   return NULL;

   511 }

   513 MemoryPool* MemoryService::get_memory_pool(instanceHandle ph) {

   514   for (int i = 0; i < _pools_list->length(); i++) {

   515     MemoryPool* pool = _pools_list->at(i);

   516     if (pool->is_pool(ph)) {

   517       return pool;

   518     }

   519   }

   520   return NULL;

   521 }

   523 void MemoryService::track_memory_usage() {

   524   // Track the peak memory usage

   525   for (int i = 0; i < _pools_list->length(); i++) {

   526     MemoryPool* pool = _pools_list->at(i);

   527     pool->record_peak_memory_usage();

   528   }

   530   // Detect low memory

   531   LowMemoryDetector::detect_low_memory();

   532 }

   534 void MemoryService::track_memory_pool_usage(MemoryPool* pool) {

   535   // Track the peak memory usage

   536   pool->record_peak_memory_usage();

   538   // Detect low memory

   539   if (LowMemoryDetector::is_enabled(pool)) {

   540     LowMemoryDetector::detect_low_memory(pool);

   541   }

   542 }

   544 void MemoryService::gc_begin(bool fullGC, bool recordGCBeginTime,

   545                              bool recordAccumulatedGCTime,

   546                              bool recordPreGCUsage, bool recordPeakUsage) {

   548   GCMemoryManager* mgr;

   549   if (fullGC) {

   550     mgr = _major_gc_manager;

   551   } else {

   552     mgr = _minor_gc_manager;

   553   }

   554   assert(mgr->is_gc_memory_manager(), "Sanity check");

   555   mgr->gc_begin(recordGCBeginTime, recordPreGCUsage, recordAccumulatedGCTime);

   557   // Track the peak memory usage when GC begins

   558   if (recordPeakUsage) {

   559     for (int i = 0; i < _pools_list->length(); i++) {

   560       MemoryPool* pool = _pools_list->at(i);

   561       pool->record_peak_memory_usage();

   562     }

   563   }

   564 }

   566 void MemoryService::gc_end(bool fullGC, bool recordPostGCUsage,

   567                            bool recordAccumulatedGCTime,

   568                            bool recordGCEndTime, bool countCollection,

   569                            GCCause::Cause cause) {

   571   GCMemoryManager* mgr;

   572   if (fullGC) {

   573     mgr = (GCMemoryManager*) _major_gc_manager;

   574   } else {

   575     mgr = (GCMemoryManager*) _minor_gc_manager;

   576   }

   577   assert(mgr->is_gc_memory_manager(), "Sanity check");

   579   // register the GC end statistics and memory usage

   580   mgr->gc_end(recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime,

   581               countCollection, cause);

   582 }

   584 void MemoryService::oops_do(OopClosure* f) {

   585   int i;

   587   for (i = 0; i < _pools_list->length(); i++) {

   588     MemoryPool* pool = _pools_list->at(i);

   589     pool->oops_do(f);

   590   }

   591   for (i = 0; i < _managers_list->length(); i++) {

   592     MemoryManager* mgr = _managers_list->at(i);

   593     mgr->oops_do(f);

   594   }

   595 }

   597 bool MemoryService::set_verbose(bool verbose) {

   598   MutexLocker m(Management_lock);

   599   // verbose will be set to the previous value

   600   bool succeed = CommandLineFlags::boolAtPut((char*)"PrintGC", &verbose, MANAGEMENT);

   601   assert(succeed, "Setting PrintGC flag fails");

   602   ClassLoadingService::reset_trace_class_unloading();

   604   return verbose;

   605 }

   607 Handle MemoryService::create_MemoryUsage_obj(MemoryUsage usage, TRAPS) {

   608   klassOop k = Management::java_lang_management_MemoryUsage_klass(CHECK_NH);

   609   instanceKlassHandle ik(THREAD, k);

   611   instanceHandle obj = ik->allocate_instance_handle(CHECK_NH);

   613   JavaValue result(T_VOID);

   614   JavaCallArguments args(10);

   615   args.push_oop(obj);                         // receiver

   616   args.push_long(usage.init_size_as_jlong()); // Argument 1

   617   args.push_long(usage.used_as_jlong());      // Argument 2

   618   args.push_long(usage.committed_as_jlong()); // Argument 3

   619   args.push_long(usage.max_size_as_jlong());  // Argument 4

   621   JavaCalls::call_special(&result,

   622                           ik,

   623                           vmSymbols::object_initializer_name(),

   624                           vmSymbols::long_long_long_long_void_signature(),

   625                           &args,

   626                           CHECK_NH);

   627   return obj;

   628 }

   629 //

   630 // GC manager type depends on the type of Generation. Depending on the space

   631 // availablity and vm options the gc uses major gc manager or minor gc

   632 // manager or both. The type of gc manager depends on the generation kind.

   633 // For DefNew, ParNew and ASParNew generation doing scavenge gc uses minor

   634 // gc manager (so _fullGC is set to false ) and for other generation kinds

   635 // doing mark-sweep-compact uses major gc manager (so _fullGC is set

   636 // to true).

   637 TraceMemoryManagerStats::TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause) {

   638   switch (kind) {

   639     case Generation::DefNew:

   640 #ifndef SERIALGC

   641     case Generation::ParNew:

   642     case Generation::ASParNew:

   643 #endif // SERIALGC

   644       _fullGC=false;

   645       break;

   646     case Generation::MarkSweepCompact:

   647 #ifndef SERIALGC

   648     case Generation::ConcurrentMarkSweep:

   649     case Generation::ASConcurrentMarkSweep:

   650 #endif // SERIALGC

   651       _fullGC=true;

   652       break;

   653     default:

   654       assert(false, "Unrecognized gc generation kind.");

   655   }

   656   // this has to be called in a stop the world pause and represent

   657   // an entire gc pause, start to finish:

   658   initialize(_fullGC, cause,true, true, true, true, true, true, true);

   659 }

   660 TraceMemoryManagerStats::TraceMemoryManagerStats(bool fullGC,

   661                                                  GCCause::Cause cause,

   662                                                  bool recordGCBeginTime,

   663                                                  bool recordPreGCUsage,

   664                                                  bool recordPeakUsage,

   665                                                  bool recordPostGCUsage,

   666                                                  bool recordAccumulatedGCTime,

   667                                                  bool recordGCEndTime,

   668                                                  bool countCollection) {

   669     initialize(fullGC, cause, recordGCBeginTime, recordPreGCUsage, recordPeakUsage,

   670              recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime,

   671              countCollection);

   672 }

   674 // for a subclass to create then initialize an instance before invoking

   675 // the MemoryService

   676 void TraceMemoryManagerStats::initialize(bool fullGC,

   677                                          GCCause::Cause cause,

   678                                          bool recordGCBeginTime,

   679                                          bool recordPreGCUsage,

   680                                          bool recordPeakUsage,

   681                                          bool recordPostGCUsage,

   682                                          bool recordAccumulatedGCTime,

   683                                          bool recordGCEndTime,

   684                                          bool countCollection) {

   685   _fullGC = fullGC;

   686   _recordGCBeginTime = recordGCBeginTime;

   687   _recordPreGCUsage = recordPreGCUsage;

   688   _recordPeakUsage = recordPeakUsage;

   689   _recordPostGCUsage = recordPostGCUsage;

   690   _recordAccumulatedGCTime = recordAccumulatedGCTime;

   691   _recordGCEndTime = recordGCEndTime;

   692   _countCollection = countCollection;

   693   _cause = cause;

   695   MemoryService::gc_begin(_fullGC, _recordGCBeginTime, _recordAccumulatedGCTime,

   696                           _recordPreGCUsage, _recordPeakUsage);

   697 }

   699 TraceMemoryManagerStats::~TraceMemoryManagerStats() {

   700   MemoryService::gc_end(_fullGC, _recordPostGCUsage, _recordAccumulatedGCTime,

   701                         _recordGCEndTime, _countCollection, _cause);

   702 }

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/services/memoryService.cpp@1d7922586cf6

src/share/vm/services/memoryService.cpp